MC9S12C128VFU Freescale Semiconductor, MC9S12C128VFU Datasheet - Page 422
MC9S12C128VFU
Manufacturer Part Number
MC9S12C128VFU
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12C128VFU.pdf
(690 pages)
Specifications of MC9S12C128VFU
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
25MHz
Interface Type
CAN/SCI/SPI
Program Memory Type
Flash
Program Memory Size
128KB
Total Internal Ram Size
4KB
# I/os (max)
60
Number Of Timers - General Purpose
8
Operating Supply Voltage (typ)
2.5/5V
Operating Supply Voltage (max)
2.75/5.5V
Operating Supply Voltage (min)
2.35/2.97V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 105C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Lead Free Status / Rohs Status
Not Compliant
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Chapter 14 Serial Peripheral Interface (SPIV3) Block Description
14.3.2.4
Read: anytime
Write: has no effect
14.3.2.5
Read: anytime; normally read only after SPIF is set
422
Module Base 0x0003
Module Base 0x0005
SPTEF
Reset
Reset
MODF
Field
SPIF
7
5
4
W
W
R
R
SPIF
SPIF Interrupt Flag — This bit is set after a received data byte has been transferred into the SPI Data Register.
This bit is cleared by reading the SPISR register (with SPIF set) followed by a read access to the SPI Data
Register.
0 Transfer not yet complete
1 New data copied to SPIDR
SPI Transmit Empty Interrupt Flag — If set, this bit indicates that the transmit data register is empty. To clear
this bit and place data into the transmit data register, SPISR has to be read with SPTEF = 1, followed by a write
to SPIDR. Any write to the SPI Data Register without reading SPTEF = 1, is effectively ignored.
0 SPI Data register not empty
1 SPI Data register empty
Mode Fault Flag — This bit is set if the SS input becomes low while the SPI is configured as a master and mode
fault detection is enabled, MODFEN bit of SPICR2 register is set. Refer to MODFEN bit description in
Section 14.3.2.2, “SPI Control Register 2 (SPICR2).”
Register (with MODF set) followed by a write to the SPI Control Register 1.
0 Mode fault has not occurred.
1 Mode fault has occurred.
Bit 7
SPI Status Register (SPISR)
SPI Data Register (SPIDR)
0
0
7
7
= Unimplemented or Reserved
= Unimplemented or Reserved
0
0
6
0
6
6
Figure 14-6. SPI Status Register (SPISR)
Figure 14-7. SPI Data Register (SPIDR)
Table 14-8. SPISR Field Descriptions
SPTEF
MC9S12C-Family / MC9S12GC-Family
1
5
0
5
5
MODF
Rev 01.24
0
4
0
4
4
Description
The flag is cleared automatically by a read of the SPI Status
0
0
3
0
3
3
0
0
2
0
2
2
Freescale Semiconductor
0
0
2
0
1
1
Bit 0
0
0
0
0
0
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